Ensure that material is accessible and properly stored (e.g., reinforcing steel on wood blocks off the ground.) MOH payments may be made for some products (e.g., precast concrete and steel girders) when stored at the fabrication plant, if the material has been sampled, tested, approved, or certified, and is ready for incorporation into the work.

Ensure that hot-mix and concrete aggregates stored at the Contractor’s plant are not contaminated or comingled with other materials. Unless the Engineer approves an exception, do not make MOH payments for materials stockpiled at a commercial plant that sells or supplies to numerous customers.

The Contractor must physically check quantities shown on the request for payment each month to ensure the materials are located in the stockpile. Inspect and measure the material stockpiled and included in the request for payment as determined necessary. Resolve any quantity discrepancies prior to including the payment for MOH on the monthly estimate.